.index-bg {
  background: url('/assets/images/index/topbg.png') center top no-repeat;
  background-size: 100% auto;
}
.index-bg .index-top {
  width: 100%;
  font-size: 2rem;
  font-weight: bold;
  color: #fff;
  height: 5.5rem;
  line-height: 5.5rem;
}
.index-bg .img-c {
  width: 100%;
  height: 24.625rem;
}
.index-bg .img-c img {
  border-radius: 2.5rem;
  padding: 0.8rem 1.6rem 0.8rem 1.6rem;
}
.index-bg .pay-sure-box {
  width: 90%;
  left: 5%;
  top: 50%;
  padding: 3rem;
  position: absolute;
  transform: translateY(-50%);
  background: #313539;
  border-radius: 1rem;
}
.index-bg .pay-sure-box .icon-close {
  font-size: 4rem;
  color: #999;
  position: absolute;
  right: 1rem;
  top: 1rem;
  font-style: normal;
  line-height: 4rem;
  display: block;
  width: 4rem;
  height: 4rem;
  text-align: center;
}
.index-bg .pay-sure-box .icon-close:active {
  color: #FCCC5B;
}
.index-bg .pay-sure-box h3 {
  font-size: 2.4rem;
  color: #fff;
  margin-bottom: 1rem;
  margin-top: 2rem;
  text-align: center;
  font-weight: normal;
}
.index-bg .pay-sure-box .user-amount {
  font-size: 3rem;
  color: #FCCC5B;
  text-align: center;
  margin: 2rem 0;
}
.index-bg .pay-sure-box button.btn-primary {
  width: 40%;
  padding: 1.5rem 0;
}
.index-bg .pay-sure-box button.btn-default {
  width: 40%;
  font-size: 2.25rem;
  padding: 1.5rem 0;
  line-height: 1;
  text-align: center;
  display: block;
  margin: 4rem auto 0 auto;
  border: none;
  background: #E6E6E6;
  border-radius: 3rem;
  color: #333;
}
.index-bg .pay-sure-box p {
  font-size: 1.5rem;
  color: #333;
  margin-top: 1rem;
  text-align: center;
}
.index-bg .pay-sure-box .btn-primary {
  font-size: 2.25rem;
  padding: 1.75rem 0;
  line-height: 1;
  text-align: center;
  display: block;
  width: 70%;
  margin: 4rem auto 0 auto;
  border: none;
  background: #FCCC5B;
  border-radius: 3rem;
  color: #333;
  -webkit-appearance: none;
  -webkit-tap-highlight-color: transparent;
}
.lf {
  text-align: left;
  margin-left: 1.5625rem;
}
.rf {
  text-align: right;
  margin-right: 1.5625rem;
}
